To debug power drain due to modem wakeups, one of the signals we'd like to track is requests for bandwidth estimate to see which apps are making requests and how often. This patch keeps a simple count per-UID when an app requests a bandwidth update, and that count is made available in dumpsys. Bug: 77498849 Test: runtest frameworks-net Change-Id: I30d2ce85f9fa6747030cf4039d1080113a32e386